E180CC

Small Signal Triode — Noval

Philips

Known Equivalents & Substitutes

7062CV8431

Similar Tubes (Not Drop-In Compatible)

5965

Similar computer-grade twin triode on B9A with same pinout, but different heater current (0.45 A vs 0.4 A) and slightly different characteristics. Radiomuseum lists it as a different quality class, not a direct equivalent.

7044

RCA lists as similar to E180CC. Same B9A base and pinout, same mu (~46), but higher gm (9 vs 6.4 mA/V) and higher heater current (0.45A vs 0.4A)

Electrical Specifications

Absolute Maximum

Anode Voltage (max)Anode Voltage (max)275V

Anode Dissipation (max)Anode Dissipation (max)2W

Cathode Current (max)Cathode Current (max)20mA

Heater-to-Cathode Voltage (max)Heater-to-Cathode Voltage (max)200V

Max Grid ResistorMax Grid Resistor (auto bias)

Notes

Pin 9 is a heater center-tap, enabling 12.6 V / 200 mA series heater operation (pins 4 and 5 only). This differs from E80CC which uses pin 9 as an internal heater shield.
Designed for computer switching — not intended for circuits critical to hum, microphony, or noise. The datasheet explicitly states this limitation.
Maximum grid resistor depends on bias method: 0.5 MΩ with fixed bias, 1 MΩ with automatic (cathode) bias.
Two operating points specified: Va=150 V / Vg=-1.85 V (μ=46, gm=6.4 mA/V, ra=7.2 kΩ) and Va=100 V / Vg=-0.8 V (μ=50, gm=7.8 mA/V, ra=6.4 kΩ).
Life-tested at 10,000 hours under conditions: Vba=150 V, Vbg=150 V, Ra=2.6 kΩ, Rg=1.5 MΩ (Ig=100 μA), Vkf=200 V.
Originally introduced in 1954 by Philips. The 7062 is the American RETMA designation for the same tube.

Pin Layout — Noval

1Anode (triode 1)

2Grid (triode 1)

3Cathode (triode 1)

Socket-Compatible Tubes ⚠ Not electrically compatible

12AV7

References